Allergy, White Bean Test: Booking, Price, and Results
About Allergy, White Bean Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | White Bean IgE Test, Navy Bean Allergy Test, Allergen F015, Phaseolus vulgaris IgE Test |
| Sample Type | Serum (venous blood) |
| Fasting Required | No fasting required |
| Report Time | 3 days |
| Recommended For | All ages; adults and children with suspected allergic reactions to White Beans or legumes |
| Price | Starting at ₹1,400 |
What is an Allergy, White Bean Test?
The Allergy, White Bean test measures the level of specific IgE antibodies in your blood to check whether your immune system has reacted to proteins in White Beans. IgE antibodies are produced by the immune system when it identifies a substance as a threat. This test is also known as the White Bean IgE Test or Phaseolus vulgaris IgE Test. A doctor may prescribe it when a patient reports symptoms that appear after eating White Beans or related legumes.
What Does an Allergy, White Bean Test Measure?
The test detects and quantifies White Bean-specific IgE antibodies in your serum. Here is what that means in plain terms.
| Parameter | What it Tells You |
|---|---|
| White Bean-Specific IgE Antibodies | Measures how much IgE the immune system has produced in response to White Bean proteins |
| IgE Class Score (0 to 6) | Indicates the degree of immune sensitisation, from undetectable to extremely high |
When IgE antibodies bind to an allergen, they trigger immune cells to release substances such as histamine, which cause the symptoms associated with an allergic reaction.
Why is an Allergy, White Bean Test Done?
A doctor may order this test to investigate unexplained allergic symptoms or to confirm a suspected White Bean allergy. The results can also support decisions about further allergy management.
Common Symptoms That May Require This Test
The following symptoms, particularly when they appear after eating White Beans or legume-containing dishes, may prompt a doctor to request the Allergy, White Bean test procedure:
- Hives (itchy, raised welts on the skin) or generalised itching
- Swelling of the lips, tongue, or throat (angioedema)
- Runny nose or sneezing (rhinitis)
- Nausea, vomiting, or abdominal pain
- Breathing difficulty or wheezing (asthma-like symptoms)
- Oral allergy syndrome (tingling or itching in the mouth after eating)
- Severe whole-body reaction (anaphylaxis)
Conditions This Test Can Help Detect
The test may help identify or support the assessment of several conditions. These include:
- White Bean allergy (IgE-mediated food allergy)
- Hay fever, atopic eczema, or respiratory allergy linked to legume sensitisation
- Cross-reactivity with other legumes, such as Soybean or Peanut
- Sensitisation before starting immunotherapy (a form of allergy treatment involving controlled allergen exposure)
How to Prepare and What to Expect
The Allergy, White Bean test procedure is straightforward. No special preparation is needed, but a few simple steps can make the process go smoothly.
Do You Need to Fast?
No, fasting is not required for this test. You can eat and drink normally before your sample is collected.
Practical Tips Before Your Test
Keep the following points in mind before your appointment:
- Bring a detailed clinical history, including your symptoms, previous test results, and family history, as this is required for the test
- Inform your doctor or phlebotomist about any antihistamines or corticosteroids (anti-inflammatory medicines) you are currently taking, as these may affect results
- Stay well-hydrated before the test, as this makes blood collection easier
- Wear a short-sleeved or loose-sleeved top for easy access to your arm
- Bring a list of recent symptoms and any foods consumed before allergic reactions occurred
Step-by-Step Procedure
Here is what to expect during sample collection:
- A trained phlebotomist cleans the inside of your elbow with an antiseptic solution.
- A small needle is gently inserted into a vein to draw a blood sample.
- Approximately 3 ml of blood is collected into a yellow-top SST gel tube.
- The needle is removed, and a small bandage is applied to the site.
- The sample is stored under refrigeration (2 to 8 degrees Celsius) to preserve quality.
- The sealed sample is sent to the NABL-accredited laboratory, where it is analysed using FEIA (Fluorescent Enzyme Immunoassay) technology.
Factors That Can Affect Accuracy
Several factors may influence the reliability of your results:
- Use of antihistamines or corticosteroids before the test
- Markedly elevated total serum IgE levels (above 2,500 kU/L), which can cause false-positive readings
- Concurrent skin conditions, such as eczema, which may lead to elevated IgE and affect interpretation
- Recent exposure to allergens or an active allergic episode
- Dehydration, which can make blood collection more difficult
Understanding Your Allergy, White Bean Test Results
Your results will be reported as a class score and an IgE level measured in kU/L (kilounits per litre). These figures indicate the degree of immune sensitisation to White Bean proteins. Always review your results with your doctor, as numbers alone do not tell the full clinical picture.
| Class | IgE Level (kU/L) | Interpretation |
|---|---|---|
| 0 | Less than 0.35 | Negative or undetectable |
| 1 | 0.35 to 0.70 | Weak positive (equivocal) |
| 2 | 0.70 to 3.5 | Positive (low sensitisation) |
| 3 | 3.5 to 17.5 | Positive (moderate sensitisation) |
| 4 | 17.5 to 52.5 | Strong positive (high sensitisation) |
| 5 | 52.5 to 100 | Strong positive (very high sensitisation) |
| 6 | Greater than 100 | Strong positive (extremely high sensitisation) |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain health conditions can influence how results should be read:
- Patients with a total serum IgE above 2,500 kU/L may receive a false-positive result due to non-specific binding to allergen solid phases.
- People with eczema often have elevated total and specific IgE levels, which can make results harder to interpret and may contribute to overdiagnosis.
- A positive result on its own is not a diagnosis of clinical allergy. Results must always be considered alongside your symptoms and medical history.
- White Beans, Green Beans, and Soy are generally tolerated by children who are allergic to other legumes, though cross-reactivity can still occur in some cases.
How to Maintain Healthy Levels
- If a White Bean allergy is confirmed, avoid White Beans and foods that contain them, such as soups, stews, casseroles, and certain baked dishes.
- Read food labels carefully, as White Beans may appear under names such as cannellini beans, navy beans, or haricot beans.
- Talk to your doctor about testing for other legumes, particularly Soy and Peanuts, given the possibility of cross-reactivity.
Lupin Diagnostics Allergy, White Bean Test Price and Home Collection
The Allergy, White Bean test cost at Lupin Diagnostics starts at ₹1,400, and home sample collection is available across cities. The table below shows approximate prices in major cities.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 1400 |
| CHENNAI | 1400 |
| HYDERABAD | 1400 |
| KOLKATA | 1400 |
| NAVI MUMBAI | 1400 |
| PUNE | 1400 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
You can complete your Allergy, White Bean test online booking in a few simple steps:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Home collection for the Allergy, White Bean test home collection service is available across cities in India. A certified phlebotomist visits your home at your chosen time, collects the blood sample, and dispatches it to the laboratory. All samples are processed in NABL-accredited laboratories, and digital reports are accessible via email or WhatsApp.
Frequently Asked Questions
White Bean allergy is an uncommon IgE-mediated immune reaction. The immune system produces IgE antibodies against proteins found in White Beans. When these proteins are consumed, the antibodies trigger the release of chemicals such as histamine, causing allergic symptoms.
Symptoms such as hives, itching, swelling of the lips or throat, stomach pain, vomiting, or breathing difficulty after eating White Beans or legume-containing dishes may indicate a need for this test. Reactions can appear within minutes to a few hours after consumption.
No fasting is required. You can eat and drink as normal before your Allergy, White Bean test. However, inform your doctor if you are taking antihistamines or corticosteroids, as these may affect the results.
The IgE class score reflects the level of immune sensitisation detected in your blood. It does not directly predict how severe your physical symptoms will be. Your doctor will assess the result alongside your clinical history and symptoms to guide the next steps.
Not necessarily. White Beans, Green Beans, and Soy are generally well tolerated by children allergic to other legumes. However, cross-reactivity with legumes such as Soybean and Peanut has been reported in some individuals. Your doctor may suggest additional testing for related legumes based on your history.
The Allergy, White Bean test is sensitive at detecting IgE sensitisation, but a positive result on its own does not confirm a clinical allergy. Results must be interpreted in the context of your symptoms and overall health history. Your doctor is best placed to conclude the findings.
Yes, the Allergy, White Bean test home collection is available. A trained phlebotomist will visit your home at a time that suits you, collect the blood sample, and send it to the laboratory. Reports are delivered digitally within the turnaround time.
Allergy, White Bean Test: Booking, Price, and Results
